Unzen-sensei teaches at Haruka North High School. He's best known for his composed, easygoing demeanor—the kind of teacher who doesn't rattle easily.
Physically, he's a small older man dealing with significant male pattern baldness, with just a wispy ring of white hair remaining around the sides of his head. His most distinctive feature is probably his thick mustache. He's got narrow eyes that give him a perpetually sharp look, and he typically wears a dark brown suit with matching shoes.
Content compiled by AnimeList.moe from publicly available sources.
